PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5863-19SKRepair Kit,valve

Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division · NSN 4820-01-665-0663 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-665-0663 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-665-0663. Primary manufacturer part number: 5863-19SK.
Features
  • Repair Kit,valve — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Repair Kit,valve, cataloged under National Stock Number 4820-01-665-0663, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRepair Kit,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersRomac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (CAGE 90800)
Technical Specifications
ParameterValue
NSN4820-01-665-0663
Primary Part Number5863-19SK
Item NameRepair Kit,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerRomac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-01-432-59692352-1161A INTERCHANGEABLE
Valve,flow Control
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-432-65875863-16SK INTERCHANGEABLE
Parts Kit,valve
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-468-90175863-11SK INTERCHANGEABLE
Parts Kit,valve
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-469-75975863-12SK INTERCHANGEABLE
Parts Kit,valve
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-501-03725863-7SK INTERCHANGEABLE
Parts Kit,valve
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-502-69622352-1201A 1.00 IN. INTERCHANGEABLE
Valve,calibrated Flow
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-502-69652352-1141ACN.00 IN. INTERCHANGEABLE
Valve,calibrated Flow
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-503-64825863-10SK INTERCHANGEABLE
Parts Kit,valve
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
5331-01-559-483889050 INTERCHANGEABLE
O-Ring
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
5331-01-559-48424365 INTERCHANGEABLE
O-Ring
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
Cross-Reference Index
Part NumberManufacturer
7093-C Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
5863-19SK PRIMARY Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
Related Parts
4820-01-432-5969INTERCHANGEABLE
VALVE,FLOW CONTROL
2352-1161A
4820-01-432-6587INTERCHANGEABLE
PARTS KIT,VALVE
5863-16SK
4820-01-468-9017INTERCHANGEABLE
PARTS KIT,VALVE
5863-11SK
4820-01-469-7597INTERCHANGEABLE
PARTS KIT,VALVE
5863-12SK
4820-01-501-0372INTERCHANGEABLE
PARTS KIT,VALVE
5863-7SK
4820-01-502-6962INTERCHANGEABLE
VALVE,CALIBRATED FLOW
2352-1201A 1.00 IN.
4820-01-502-6965INTERCHANGEABLE
VALVE,CALIBRATED FLOW
2352-1141ACN.00 IN.
4820-01-503-6482INTERCHANGEABLE
PARTS KIT,VALVE
5863-10SK
5331-01-559-4838INTERCHANGEABLE
O-RING
89050
5331-01-559-4842INTERCHANGEABLE
O-RING
4365
4820-01-560-4452INTERCHANGEABLE
PARTS KIT,VALVE
5863-5SK
4240-01-657-1961INTERCHANGEABLE
PARTS KIT,RESPIRATOR

Frequently Asked Questions

What is NSN 4820-01-665-0663?

NSN 4820-01-665-0663 is a Repair Kit,valve, manufactured by Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-665-0663?

NSN 4820-01-665-0663 has 2 cross-referenced part numbers: 7093-C (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division), 5863-19SK (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division).

What NSN replaces 4820-01-665-0663?

There are 12 known substitutes for 4820-01-665-0663: 4820-01-432-5969, 4820-01-432-6587, 4820-01-468-9017 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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